Brake



tion taken in'connection with the accompany-v A steering wheel .15 is rotatably mounted onhas its lower Patented Mar. 15, 1927.

UNITED STATES' PATEN'" i OFFICE.

PAULBASTIEN, OF CLEVELAND, O IA-IIO.

BRAKE Application iled Octoberill, 1923. Serial No. 666,513.

This invention relates to brakes for steering wheels of motor vehicles-and has for one o f'its objects the provision of a comparatively simple brake mechanism that will be applicable to steering wheels, generally, irre speetive'of the angle betweenA the plane of the wheel and the steering pivot and the position of the actuating shaft for the brake,

that is, whether in line with the steering pivot or to the front or rear thereof.

' Another 'object of the invention is to pro-4 vide a brake mechanism Vof the .type speciiied, that will not, in its operationgaffect the steering'movements or be aifect'ed by them. Other objects and the features. ofy novelty will be apparent from the following descriping drawing, of which:

I Figure 1 is an elevation of an axle having a steering wheel at the end thereof, with cer- Jfain parts being` shown in section, the construction emb'odying my invention;

Fig. 2 is a substantially vertical section on .the line 2 2 of Fig. 1;

Fig. 3 is a side elevationof the actuating cam for the brake, the 'supportifor the cam being shown in outline Fig. l is'a plan View of the cam shown in Fig 3-with the support therefor and the brake shown in outline.

Fig. 5 -is an elevation ofthe cam shown 'in Fig.' 3 with the bearing therefor `shown-in outline.

Referring to the drawings, indicates an axle having steering spindle members connected to its ends, one of such members being indicated at 11 and connected with the end Vof the axle by the pivot 12. AA brake spider 13 is secured to the member in any preferred manner as by means ofrivets 14.

24: and 25 are 4respectively 'oonnectedzwith' withdraw the shoes l arm w'hiclris connected the shoes 17 and 18 and, at their inner ands, with the bracket 20 and' normally 'tend to from engagement with the interior ofthe brake drum 16.

sta-ntially parallel flat faces 26 which engage the flattened sides 27 of the cam member-21..

The cam member 21 is provided with a substantially cylindrical outer surface to fit The ends I of the shoes 17 and 18-are formedwith sub.-

the' bearing therefor in the bracket20 and on .l

the upper and lower sides of the cani there are ribs 28 fitting in complementary grooves inj the bearing against axial displacement.

Vto hold` the cam member, i

An actuating shaft 29 is supported on the axle 10,

suitable bearings being provided therefor,

and this shaft carries an actuating ver (notshown), on the body of the vehicle.

AThe' shaft 29 may been either side of thel aXle 10 and is connected with an extension sli'af-t31 by any suitable form of universal joint housed in the bearing 32.

In the form of they invention illustrated in the drawings thev plane of the wheel -15 vis inclined with respect to the plane of the pivot 12 and the center' of the cani member 21- is located at the intersection of these' planes, as clearly shown inFig. 2. Theplane in which the cam 21 rota-tes is preferably in alignment with theaxis of the pivot 21 so that the relation betweenl the sol cam member 21 and the pivot 12 is not` disturbed by tliesteering movements of the wheel.

The shaft 3l projects intov the cam meniber 21 .and has a pair of trunnions 33 which engage with the grooves 3.4.on opposite sides l of the cam member so joint connection therewith.

In the operation of the brake the rotation of the shaft 31 effects the rotation of the cam .21 andthe latter spreads theshoes 17 and 18. When. Vthe brake is set the wheel is not restrained, as to its steering movements,

because thetrunnions 33 form a universal joint connection with the cam 21 and the universal Joint connection between the lshaft assume any required position in t-he operation of the brake.

On the other hand,

when the wheel `15 is turned, as in steering,.

the-cam 21'oscil1ates about the .trunii'ions 33 -as to forni a universal 31 and the -shaft29 permits theshaft 31 tof arranged below the pivot 12 wherel ity is out of the Way and -incons icuous'. Having thus described my invention, what I claim is:

1. In brake mechanism, the comhinatipnl of anl axle, a steering wheel spindle\\memter pivoted thereto, a wheel on saidv spindle member, a brake drum carried by said wheel,.

a brake cooperating with said drum and having opposed endsV adapted to be separated to apply the brake to said drum, the

plane of said brake4 being at an angle to the -plane of said pivot, a cam,member lcarried in an enclosing bearing lon said spindle member below said pivot and rotatable'about an axis that intersects and is normalv to the axis of said pivot, said cam operatively engaging said opposed ends of said brake,

an actuating shaft projecting into said cam.

member and with its axis substantially cointure. cident with the axis of said cam andihaving one endsupported on'v said axle, 'and a and the interior of said cam member.

2. In brake mechanism, the vcombination of an axle, a steering wheel spindle member -pivoted thereto,

a wheel on said spindle member,y a brake drum carried by said Wheel, a brakecooperating with saidy drum and havingopposed ends adapted to be sepaunlversa] joint connection between said shaft4 rated to apply the brake to-said drum, the

plane of said brake being at an angle to the plane of said pivot, a cam member having an external bearing vsurface vvhereon it is rotatable about an axis that intersects and is normal tothe axis of said pivot and below the latter, said cam member having an openingtherein and grooves on opposite sides of said opening, and a shaft projecting into said cam member with its axis substantially coincident with the axis osaid cam 'member and having trunnions engaging lwithv said grooves' toprovide a universal joint com nectlon between the shaft and cam member.

, In testimony whereof I-,aiiix 'my' signa- 50 PAUL Merian.-v y 

